Ventilator for portholes and like openings



I Dec. 28 1943. w. w. CARVER VENTILATOR FOR PORT-HOLES AND LIKE OPENINGSFiled Aug. 11, 1942 ATTOR Y Patented Dec. 28, 1943 UNITED STATES OFFICEVENTILATOR FOR PORTHOLELS AND LIKE OPENINGS 1 Claim.

This invention relates to an improved ventilator for port-holes and likeopenings which ventilator is easily installed in a port hole andincludes a rotatable unit which can be easily adjusted by hand. Theadjustment causes the outside fins of the unit to be facing or to bewith the wind. In this way the ventilation of a cabin or compartment canbe facilitated according to the direction the vessel is taking and thedirection of the wind.

The invention is further designed to provide a unit having a large areafor the passage of air and constructed to provide a substantial unit.The discs and fins of the unit are secured together in a manner toprovide a ventilator light in weight but substantially rigid when inplace.

The invention is illustrated in the accompanying drawing in which Figure1 is a face view of the ventilator with one half broken away. Figure 2is a side view of the ventilator shown in Figure 1, with the lower halfin central section.

The drawing shows in dotted outline a porthole III in the side I I of avessel. A band or ring I2 is proportioned to fit in the port-hole andprovide a casing for the rotatable unit. The ring I2 is provided with aflanged ring I3 which fits around a gasket I4 at the edge of theport-hole. An additional flanged band I 5 is secured by welding orotherwise to the ring I2, as is the ring I 3. The casing is fastened inplace by suitable means such as usual fastening bolts I6 now used onshipboard and which fit in the slots of the ears I8 of the flange I5 andthe nut I9 is screwed down against the ears.

The casing or ring I2 is provided on its inner edge with a flange 20which acts as a stop for the rotatable unit. The unit is held againstmovement in the other direction by a band 2| which is screwed by screws22 or otherwise to the ring I2.

The rotatable unit fits inside the ring I2 loose enough to be turnedeasily by hand. The unit is made up of discs 23, to the required number.The discs are punched to form louvers 24 which provide the openings 25for the passage of air. The discs are reversed and arranged to staggerthe louvers to prevent the passage of light through the ventilator. Thediscs are secured, preferably by welding, to circular bands 26 havingflanges 21. The bands 26 fit easily into the ring or casing I2 and withthe discs form a relatively still, light unit that can be turned to suitconditions.

The unit is provided with a handle for easy manipulation. The handle 28shown extends across the center of the unit and is spaced therefrom,being fastened to the inside disc 23 by welding or other means offastening.

The outer face of the unit is preferably provided with a wind scoop 0rshield 29 that extends part way around the outer edge and is located toreceive and direct air into the ventilator or to act as a shield andthus induce air from the ventilator.

The construction of the unit is designed to provide a strong unit. Thebands 26 serve, when welded to the rims of the discs 23 to transmit thestrain incidental to rotating the unit. The bands 26 and disc 23, alsothe handle, if one is employed, are welded together separately and forma unit that is readily placed in the casing I2 and is secured thereinwhen the band or ring 2I is fastened into place.

I claim:

A ventilator comprising a round casing for installation in a port-holeor the like, a rotatable unit in the casing comprising spaced discshaving louvers for the passage of air, flanged bands to which the rimsof the discs are secured, means to secure the bands and discs togetherto form a unit, and means for rotatably mounting said unit in the casingso that the discs can be rotated in unison and provide a peripheralcontact with the discs and with the casing.

WALTER W. CARVER.

